Valerie Orsat

Prof. Valerie Orsat


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
12 April 2011 in Food and Bioprocess Technology
Verified
Journal Article
Closed access
PDF file
WRWinny Routray
Winny Routray
VOValerie Orsat
Valerie Orsat

15 May 2018 in Climate
Verified
Journal Article
Open access
PDF file
Jin WangJin Wang
Jin Wang
SVSai Kranthi Kumar Vanga
Sai Kranthi Kumar Vanga
RSRACHIT SAXENA
RACHIT SAXENA
VOValerie Orsat
Valerie Orsat
Raghavan VijayaRaghavan Vijaya
Raghavan Vijaya
By the end of this century, the average global temperature is predicted to rise due to the increasing release of greenhouse gases (GHGs) into the atmosphere. This change in climate can reduce agricultural yields, resulting in food insecurity. However, agricultural activities are one of the major contributors of GHGs and lower yields can trigger increased activity to meet the demand for food, resulting in higher quantities of GHGs released into the atmosphere. In this paper, we discuss the growth requirements and greenhouse gas release potential of staple cereal crops and assess the impact of climate change on their yields. Potential solutions for minimizing the influence of climate change on crop productivity are discussed. These include breeding to obtain cereals that are more tolerant to conditions caused by climate change, increased production of these new cultivars, improved irrigation, and more effective use of fertilizers. Furthermore, different predictive models inferred that climate change would reduce production of major cereal crops, except for millets due to their ability to grow in variable climatic conditions, and in dry areas due to a strong root system. Moreover, millets are not resource-intensive crops and release fewer greenhouse gases compared to other cereals. Therefore, in addition to addressing food security, millets have an enormous potential use for reducing the impact of agriculture on global warming and should be grown on a global scale as an alternative to major cereals and grains.

5 July 2011 in Food and Bioprocess Technology
Verified
Journal Article
Closed access
PDF file
RMRamesh Murugesan
Ramesh Murugesan
VOValerie Orsat
Valerie Orsat

25 October 2011 in Comprehensive Reviews in Food Science and Food Safety
Verified
Journal Article
Open access
PDF file
WRWinny Routray
Winny Routray
VOValerie Orsat
Valerie Orsat
Abstract:  Blueberry is one of the most popular fruits in North America and rich in anthocyanins. Its content in anthocyanins contributes to the health‐beneficial effects of blueberry against several chronic diseases including cardiovascular disorders, neurodegenerative diseases, diabetes, and cancer. This paper summarizes various facts presenting blueberry as a fruit with huge potential for increased future consumption as a health‐enhancing food. Factors affecting the biosynthesis of the various anthocyanins in blueberries, including agronomic and genetic factors, and the possible pathways of biosynthesis of the major anthocyanins present in this plant are discussed. The important health‐beneficial effects associated with blueberry anthocyanins, properties of these anthocyanins leading to the beneficial effects, and food processing parameters leading to the depletion of the amounts of anthocyanins present in the final processed products are also briefly discussed. Furthermore, the general methods of extraction and analyses that have been reported for being successfully applied to blueberry anthocyanins are also reviewed. Practical Application:  Blueberries are well known for their nutritional and beneficial health effects, however, information concerning the physiology behind the blueberry beneficial effects is still lacking. There is little or no information on the characterization of growing conditions on anthocyanins in blueberries and research is lagging behind on advanced methods of extracting blueberry anthocyanins.

28 June 2018 in Sustainability
Verified
Journal Article
Open access
PDF file
RSRACHIT SAXENA
RACHIT SAXENA
SVSai Kranthi Kumar Vanga
Sai Kranthi Kumar Vanga
Jin WangJin Wang
Jin Wang
VOValerie Orsat
Valerie Orsat
Raghavan VijayaRaghavan Vijaya
Raghavan Vijaya
A growing population means an ever-increasing demand for food. This global concern has led to antagonism over resources such as water and soil. Climate change can directly influence the quality and availability of these resources, thereby adversely affecting our food systems and crop productivity, especially of major cereals such as rice, wheat and maize. In this review, we have looked at the availability of resources such as water and soil based on several modeling scenarios in different regions of the world. Most of these models predict that there will be a reduction in production rates of various cereal crops. Furthermore, all the major cereal crops are known to have a higher contribution to global warming than alternative crops such as millets which should be considered in mitigating global food insecurity. In this study, we have used the data to predict which regions of the world are most adversely affected by climate change and how the cultivation of millets and other crops could aid in the reduction of stress on environmental resources.

26 February 2012 in Food and Bioprocess Technology
Verified
Journal Article
Closed access
PDF file
KKKiruba Krishnaswamy
Kiruba Krishnaswamy
VOValerie Orsat
Valerie Orsat
YGYvan Gariépy
Yvan Gariépy
KTK. Thangavel
K. Thangavel